Accent mechanism for type-writers.



T. 5. uscHMAm-m, ACCENT MECHA ?JISM FOR TYFE WINTERS. APFLICATlON FILEDMAR. 27. I913.

mfimm me -swam. 21., 1915.;-

THEGDGE EUGEE BUS'CHMANN. OF CHEMNITZ, GERMANY, .AESSIGNOB TO- -333'tii'illDEREB-NERKE, VORM. 'WINKLHOFER it JAENEGIiiE, Gm GEGTtI-IEMIZ'LTEJ', i

ACCENT MECHANISM FOE, TYPE-WRITERS.

i o aZZ whom it may concern: it known that I, Tnnonon Enemy i scintmy,subject of the King of Saxony, and resident of llayilnstrnsse 9,Chemnitz, Saxony, Germany, have invented new and useful Improvements inAccent lvlechanism for Type-Rita's, of which the following is aspecification.

This invention, relates to an improved device for typing accents andsimilar signs for use in typewriting mechines.

t is it well known fact that in devices of this type provisions must hmade which, when an accent key is struck, prevent the carriage feedmechanism from coming into operation, as otherwise the accent inquestion would not be typetl abovc the letter to which it belongs.

In existing devices serving a similarpurpose the feed of the papercarriage is prevented by providing the accent key with notches orrecesses located above the socalled universal bar, so that, ondepressing the accent key, no movement is imparted to this universalbar. in these existing clevices, however, it is one of the conditions tlzit accents'or similar signs are always {illO'ttQtl to the same keys, sothat they cannot be grouped with other charecters, for instance, withnumerals or letters. This striction particularly inconvenient is in(311585 Where the key board must comprise an uneven number of accentsigns, since in such cases it will he necess; ry to provide a separatekey for the sake of e single sign.

The object of this invention is to provide means to obviate thisclrzivvhack. On shifting the platen by means of the shift key a systemof levers is thrown into action which throws into operationanadjustfills out'or in its turn x L mer t piece which, so L-O speak,supplements the notches or recesses 1n :iccent'kcys so that these keysmay act either as dead? keys, not nfluence the paper carriage feedmechanisin) or as normal keys. 13y adopting this or 'ungement it ispossible to group together accents or similar signs with nuinerals,ordinary letters and the like on the same carriers, so that during thewriting of numerals and the like, the corresponding key may act as anormal whi e when typing accents the recess or notch in'the accent keyis uncovere l by the movement of the cmiriageshiftiiig or case chengingmoved to and of a. rod system 8 to which connects the 11 to theconcectii the M (2'. 9. keys which do i a universal her frame z nrl thekey in question may be con \Qlttll into ii llezu'l kev.

illlt method of carrying the ihveiitioh into etlr-ct 153 shown by way ofexample in trated the platen S is mounted in oro iinary manner on thecarriage-shifting by means of guide rollers, so het it-may he 2 clenotcs22. type lever segment which the type levers preferably r balls. Thetype levels 5 receive til-sex mo ment from hey levers in the use ithrough the of intermediate l e. the sitoresail key le 's one key lever5 is show; l It lg. l-he f of the shift key lever 3, which is rock aboutthe pivot '2 jcintetl hy t a 1e cerriegssh frame 1, to which latteiyforthe pr 1; insuring e paralle motion, is in: hinged. on i -l l 10 Tossieiroe heating rod 12, pivoted to arlgu t suspemlecl' from anextension 5 of cent key level. in sec manner th rock.

Fertile-s there i provided 2, shrine: L v

rod 12 3216i. which spring tends to p connecting rod always towercl t1). iii, the connecting-point between arm ligand the connecting roclpro-vi is made; for some lost motioii, for which pose slohgitudinel slot12* is provide the connecting-rod 121; Beneath the hey gers is arrengetlin the usual manner 15 which mountecl on memher 16, The seitl shaft 17by means shaft 13', through metlium of the soils and 19 transmits themot on cat-siege Fig. 3 shows views,

feed mechanism. The remsisicler of the le ver mecheziisze, which isnet's-further tevention.

gs am scribed herein, serves for transmitting the necessary motion fordriving the ribbon fork also during the typing of accents.

fhe keys illustrated in Fig. 3 show one 4 example of how ordinarycharacters or' numerals may be grouped together with accents and similarsigns according to this in- The mode of operation of the improved devicefor typing accents and similar signs is as follows :Assuming that in theillustrated example the ordinary characters are arranged in the bottomrow, it will be necessary to depress the shift key for typing accents.On depressing the shift key the case shifting frame 1, is raised bymeans of the rod system 8 and-transmits the motion to the rocking shaft10 through the medium of the arms 9, which shaft at the same time causesthe shorter arm 11 to be turned to the right. In this case the rod 12and with it the adjustment piece 14, are moved from the position shownin Fig. 2 into the position shown in Fig. 1. If now the accent key lever5 is depressed, it does not' cause the carriage to travel, 'as saidlever cannot influence the universal bar 15, owing to the notch orrecess above said bar being now uncovered. The case, however, isdifferent when the parts are in their normal position shown in Fig. 2,in which the carriage is not justment piece 14 presses on the universalbar and this causes the carriage feed mechanism to operate. Should theplaten or the carriage-shifting frame move down ward, without'theuniversal bar also moving downward to a sufficient extent, the spring 13arranged between the rocking lever 11 and the rod 12 is tensioned (Fig.1), said spring causing the adjustment piece 1.4:, after the completedescent of the universal bar, to return into its normal position.

It is-evident from the above that this invention renders it possible togroup together accents or similar signs with any desired character on aparticular carrier, so as to meet the requirements arising in eachparticular case out of the arrangement of the 7 key board, it beingimmaterial, whether the accent sign is moved-into the operative positionby manipulating the shift key, or

whether it assumes the said position when the platen is in its normalposition. If the accent signs are to be in their operative positionduring normal typing, (6. e. without using the shift key), all that isnecessary is to so modify the arrangement that normally the accent keyacts as dead key, while when it is desired to typeordinary characters,the aforesaid key, when the carriage is shifted by means of the shiftkey, is converted into a normal key. This is done without essentiallychanging the mechanism as illustrated in Fig. 4 when leyer 14; thatshifted by the shift key. In this position, the ad- 'riage shiftingmechanism, and a universal controls the notch is inclined to-normallyexpose the notch. This is done by simply shorteninglever 12 so that thenotch in the key lever 5 is exposed for lower case writing and acts as adead key without stepping the platen, while when the shift key 6 isactuated, the lever leis swung over the notch andcauses the type lever 5to act as an ordinary key and operatethe universal bar 15.

I claim:

1. In a typcwriting machine having a univers'al bar and platen shiftingmechanism, a lfey lever having a notch over said universal bar andnormally acting as a dead key lever in onc-positionof the platen, andnotch closing means actuated from the platen shifting means when theplaten is in another position and causing said key lever to act asa vlive key lever.

2. In-a typewrlting machine having a universal bar and platen shiftingmechanism, a

key lever and means on said lever moved into and out of operativerelation to saiduniversal bar by the shifting mechanism. I

3. In atype writing machine having a universal bar and platen shiftingmechanism, ,a key lever having a notch located opposite the universalbar, a lever pivoted to the key lever and operating as a notchfiller andmeans to connect said lever to the shiftlng mechanism, whereby saidpivoted lever is moved into and out of operative position over theuniversal bar.

4. In a typewrltingmachine having a car- -without depressing theuniversal bar, an

adjustment piece on the type lever adapted to fill out the recess and tocause the saidtype lever to act as. a normal type-lever, and

a shift key adapted to put the adjustment piece into or out of normaloperating position.

5. In a typewriting "machine having a carriage shifting mechanism and auniversal bar, a special type lever having a recess therein adapted topermit the depression of the said lever without depressing the universalbar, an adjustment piece to cause-said lever to act as a normal typelevena shift key, and asystem of levers attached thereto and to theadjustment piece adapted to put theadjustment piece out of operation ondepressing ,the shift key.

6. In a typewriting machine having a car riage shifting mechanism and auniversal bar, a special type lever having a recess therein to permitits depression without depressing the universal har, an adjustment pieceon said lever pivotally connected thereto, and adapted to fill out thedepression and to cause the lever to act as a normal type lever,'a shiftkey, a link thereon, a bell cranlrlever connected to the link by one oiits arms, and a link on the other arm pivotally connected to theadjustment piece to operate the said adjustment piece so as to thedepression in the type lever on depressing the above mentioned shiftkey.

piece on said lever pivotally connected thereto, and adapted to fill outthe recess and to cause the lever to act as a normal type-lever,

a shift key, a link thereon, a bell crank leverconnected to the link byone of its arms, a link pivotally connected to the ad justment piece atone end, a slot in the other end,-a pin on the second arm of the bellcranlg lever engaging within the slot,

and a spring under tension connected to the link and to the said secondarm.

In testimony Whereoi I have aflixed my signature in presence of twowitnesses.

, THEODGR EUGEN BUSOHMANH. Witnesses:

E. K. Foo'rn, EMIL GEYER.

